A prolonged and dangerous weather pattern continues across much of the United States this week. A powerful dome of high pressure will keep dangerous heat locked over the Northern Plains, Upper Midwest, and eventually parts of the Northeast and Mid-Atlantic, while repeated rounds of thunderstorms bring a serious flash flood threat to southwest Texas. At the same time, the Southwest monsoon is becoming increasingly active, bringing daily thunderstorms and localized flooding concerns across the Four Corners and Intermountain West.
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The weather pattern across the United States and Canada remains highly active this week, with two major stories dominating the forecast. Dangerous, long-lasting heat continues across much of the South before expanding into the western United States by the weekend. At the same time, repeated rounds of thunderstorms will bring the threat of flash flooding and severe weather from the Mid-Atlantic and Northeast to parts of the Midwest and Gulf Coast. Residents across these regions should stay weather-aware as heavy rain, damaging winds, and dangerous heat create multiple hazards over the coming week.